<h2>Why is this an issue?</h2>
<p>The W3C specifications say comments should be defined using <code>/* ... */</code>. The use of <code>//</code> is not supported on all browsers and
can lead to unexpected results.</p>
<h3>Noncompliant code example</h3>
<pre>
// some comment
a { color: pink; }
</pre>
<h3>Compliant solution</h3>
<pre>
/* some comment */
a { color: pink; }
</pre>
<h3>Exceptions</h3>
<p>This rule ignores single line comments in <code>less</code> and <code>scss</code> files.</p>
